Improvement in wash-boilers



1. c. 'TlL'rurLV wash-Boilers.

Patented Feb. 25,1873.

AM. PHoTv-Llrflasnmllc ca lv. y (ossaR/vsfs Pnoccsg) UNITED STATESPATENT GFEICE.

JOSEPH O. TILTON, OF PITTSB'URG, PENNSYLVANIA.

IMPROVEMENT lN WASH-BOILERS.

Specification forming part of Letters Patent No. 136,283, dated February.'25, 1873.

To all whom it may concern: p

Be it known that I, JOSEPH C. TILTON, of the city of Pittsburg, in thecounty of Allegheny and State of Pennsylvania, have invented certainImprovements in Wash-Boil ers, of which the following is aspecification:

My invention relates to that class of washboilers which are constructedwith a false bottom, and have passages leading to the top of the boiler,through which the water, when heated, escapes from below the falsebottom, cold water entering through a valve arranged in the false bottomand consists in the simple and convenient means employed to support thecold-water valve, and in the use of suitable packing to make the falsebottom watertight, and in the arrangement of the said packin g.

In the drawing, Figure l is a perspective view of my boiler, the sidebeing broken away toshow the interior arrangement; Fig. 2, a top view ofthe boiler; Fig. 3, a cross-section through the section-line A A of Fig.2; Fig. 4, a vertical central section through the sectiondine B B ofFig. 2; and Fig. 5, a detail, full size, showing the manner of securingthe packing. Y

C is the boiler; D, the false bottom; E E, hot-water passages, throughwhich the hot water passes to the top of the boiler; o c, ventholes forthe escape of the hot water; F F, holes in the false bottom throughwhich the cool water passes into the water-chamber below the falsebottom; G, movable plate which closes the holes in the false bottom; HH, holes in the plate Gr. rIhis plate is supported by strips of tin a apassing through the holes H H, as shown in Fig. 3, the ends beingsoldered to the under side of the removable false bottom D. I l arestrips of tin which form a part of the false bottom, and are solderedsecurely to the sides of the boiler. Their inner edges are turned down,forming grooves J J', in which the turnedover edges of the removablefalse bottom t. These turned-over edges are covered with cloth, rubber,or other suit- The advantages of this arrangement of the,

several parts of my boiler are, its simplicity and freedom from partswhich can hold tle Water and rust out the boiler, nothing being fastenedto the bottom; the packing around the edge ot' the removable falsebottom, which prevents any of the hot water from escaping except throughthe passages E E; and the mode ot' securing the same to the edge of theremovable false bottom D.

Disclaiming those parts which I have described that it is not myintention to claim,

What I do claim as new, and desire to secure by Letters Patent of theUnited States, is-

The removable false bottom D having the turned-down edges covered withcloth, rubber, or other suitable packing, secured substantially asdescribed, in combination with the boiler G having the partial falsebottom I I, grooves K K, and hotwater passages E E,

when arranged and operating as described,

and for the purpose specified.

JOSEPH C. TILTON.

Witnesses:

FRANcIs L. CLARK, F. H. BowER.

